.title-back {
    background-color: aliceblue;
    width: 100%;
    height: 50px;
}

.title {
    z-index: 3;
    background-color: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(20px);
    width: 100%;
    height: 50px;
    /* border-bottom: 1px dashed; */
    border-color: darkgrey;
    position: fixed;
    top: 0;
    border-bottom: 1px rgba(0, 0, 0, 0.1) solid;
    transition: 0.4s ease-out;
}
.title:hover {
    box-shadow: 0 0 6px 1px rgba(0, 0, 0, 0.3);
}

.title > .tag-h {
    z-index: 3;
    float: left;
    min-width: 60px;
    height: 100%;
    line-height: 50px;
    text-align: center;
    padding: 0 10px;
    user-select: none;
}

.title > .tag {
    z-index: 3;
    float: left;
    min-width: 60px;
    height: 100%;
    line-height: 50px;
    text-align: center;
    padding: 0 10px;
    transition: 0.2s ease-out;
    overflow: visible;
    user-select: none;
    color: black;
}
.title > .tag:hover {
    background-color: #4190FF;
}
.title > .tag:active {
    background-color: aqua;
    transition: 0s ease-out;
}